1=undisturbed, 2=1 pass rear-tined rototiller set to till to a depth of 9 inches, 3=2 passes or number required to produce about 50% bare ground, 4=3 passes or number required to produce 100% bare ground.

8

Year

Year of sampling (YYYY)

9

Sampling date

Sampling date (YYMMDD)

10

Molarity of potassium chloride

Molarity of potassium chloride

gramsPerMole

11

Tin letter

Tin letter

12

Tin number

Tin number

13

NO3 in solution (ppm)

NO3 in solution (ppm)

dimensionless

14

NH4 solution (ppm)

NH4 solution (ppm)

dimensionless

15

Moisture (g H2O / 100g Dry Soil)

Moisture (g H2O / 100g Dry Soil)

gramsPer100Grams

16

Dry soil weight (g)

Dry soil weight (g)

gram

17

NO3 in soil (mg/kg)

NO3 in soil (mg/kg)

milligramsPerKilogram

18

NH4 in soil (mg/kg)

NH4 in soil (mg/kg)

milligramsPerKilogram

SAMPLE DATASET

Field number/letter

Experiment number

Plot number

Nitrogen Treatment

Ammonium Nitrate(34-0-0) addition(g/m2/yr)

Annual Nitrogen addition (g/m2/yr)

Soil Disturbance Treatment

Year

Sampling date

Molarity of potassium chloride

Tin letter

Tin number

NO3 in solution (ppm)

NH4 solution (ppm)

Moisture (g H2O / 100g Dry Soil)

Dry soil weight (g)

NO3 in soil (mg/kg)

NH4 in soil (mg/kg)

B

52

1

3

6

2.0

2

1989

890818

A

1

0.046

0.6976

2.21

5.95

0.3863

5.8639

B

52

1

3

6

2.0

2

1989

890725

A

2

0.0217

0.1637

4.87

3.38

0.3205

2.418

B

52

1

3

6

2.0

2

1989

890818

A

2

0.1321

1.158

2.94

6.35

1.0396

9.1136

B

52

1

3

6

2.0

2

1991

910819

0.02

A

1

0.0664

0.4782

5.09

30.69

0.1081

0.7792

B

52

1

3

6

2.0

2

1991

910819

2

B

1

0.0162

0.3189

5.09

23.27

0.0348

0.6851

B

52

1

3

6

2.0

2

1992

920813

2

A

1

0.0269

0.1225

4.92

15.45

0.0871

0.3964

B

52

1

3

6

2.0

2

1992

920813

0.02

B

1

0.0308

0.2393

4.92

14.11

0.1092

0.8482

B

52

1

3

6

2.0

2

1989

890725

A

1

0.0399

0.4777

4.31

3.16

0.6306

7.5499

B

52

2

7

50

17.0

4

1991

910819

2

B

2

0.0635

0.4968

4.34

32.1

0.0989

0.7737

B

52

2

7

50

17.0

4

1992

920813

2

A

2

0.0615

0.2487

4.39

19.41

0.1584

0.6407

B

52

2

7

50

17.0

4

1991

910819

0.02

A

2

0.0968

0.7325

4.34

26.15

0.1851

1.4004

B

52

2

7

50

17.0

4

1989

890725

A

4

0.2283

1.934

4.9

2.56

4.4679

37.8487

Download dataset nohe052Interactive Effects of Fertility and Distribution on Plant Community Diversity and Structure: Soil nitrate and ammonium